linux-kernel - Fairly reproduceable crash in 3.7.1 Null pointer rb

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Message-ID: <20130102222757.GC8631@merlins.org>
Date:	Wed, 2 Jan 2013 14:27:57 -0800
From:	Marc MERLIN <marc@...lins.org>
To:	Linux Kernel mailing List <linux-kernel@...r.kernel.org>
Subject: Fairly reproduceable crash in 3.7.1 Null pointer rb_erase+0xc4/0x292

Google only shows hits pointing to an ext4 patch that didn't go in 3.7
proper.

http://marc.merlins.org/tmp/crash.jpg

My call trace doesn't look copmlete, but shows "fatal exception in interrupt" and:
timerqueue_del
__remove_hrtimer
__run_htrimer
hrtimer_interruypt
smp_apic_timer_interrupt
<???>
paravirt_read_tpe
intel_idle
intel_idle
cpuidle_enter

I had pretty repeated crashes when plugging power back into my running
laptop, but the display just freezes and I can't get a dump.

For the crash here, I did: suspend to RAM, plug power back in, wake up.
Laptop crashed about 3 seconds after wakeup.

I'm on vacation with no hardware to get a proper crash dump or even
serial console, but I have a bad screenshot.

Boy do I wish this could be saved in some kind of NVRAM instead like on
android.

Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
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